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白石孝信,太田道雄,中川雅晴,金炯一 大韓齒科器材學會 1993 대한치과재료학회지 Vol.20 No.1
The effect of palladium addition up to 6at% to an equiatomic AuCu alloy on the atomic ordering and age-hardening behavior was studied by means of electrical resistivity measurements, X-ray diffraction and hardness test. The following results were obtained. 1. All alloys in the AuCu-Pd pseudo-binary system examined in this study exhibited a single phase with AuCu Ⅰ type ordered structure by the aging at 300℃, and the axial ratio(c/a) became larger than that of stoichiometric AuCu Ⅰ ordered lattice. 2. The order-disorder transition temperature(Tc) rose with increasing the palladium concentration. 3. With increasing the palladium concentration, age-hardening rate in the early stage of aging became slower and the onset of overaging delayed. This was attributed to the fact that ordering rate decreased with increasing the palladium concentration.